How much of your working capital is frozen in inventory right now โ and for how many days. Per SKU. The number that explains why your revenue grows but your bank doesn't.
5 SKUs, 4 verdicts. Currency follows your โน/$ toggle below.
| SKU | Stock | Units (30d) | COGS | Cash locked | Days | Verdict |
|---|
| SKU โ | Stock โ | Units (30d) โ | COGS โ |
|---|
cashLocked = stock ร COGS
velocity = units30d / 30
daysLocked = stock / velocity
Total cash cycle โ daysLocked + 14 (Amazon payout) + 7 (bank settlement).
Because every additional rupee of revenue ties up another rupee in inventory. The faster you grow, the more capital you need to fund inventory. This calculator shows the size of that trap.
Inventory age is how long stock has been sitting. Days locked is how long current stock will take to convert back to cash at your current sell rate. A SKU can be young but slow โ and still lock cash for months.
For Indian Amazon sellers: 60-day inventory turn + 14-day Amazon payout + 7-day bank settlement = ~80 days total cycle. Above 120 days inventory turn and you'll feel constant cash pressure.